diff --git a/Mage.Client/pom.xml b/Mage.Client/pom.xml
index 8fe1db8efcc..03fb7a10c38 100644
--- a/Mage.Client/pom.xml
+++ b/Mage.Client/pom.xml
@@ -57,7 +57,8 @@
         </dependency>
 
         <dependency>
-            <!-- wtf lib, related to plugins system TODO: unused and can be deleted? -->
+            <!-- used in the plugins system -->
+            <!-- imported as net.xeoh.plugins -->
             <groupId>com.googlecode.jspf</groupId>
             <artifactId>jspf-core</artifactId>
             <version>0.9.1</version>
diff --git a/Mage.Common/pom.xml b/Mage.Common/pom.xml
index ff1527c5789..79fef78ce73 100644
--- a/Mage.Common/pom.xml
+++ b/Mage.Common/pom.xml
@@ -42,6 +42,14 @@
             <artifactId>jboss-serialization</artifactId>
             <version>4.2.2.GA</version>
         </dependency>
+
+        <dependency>
+            <!-- A dependency of jboss.remoting -->
+            <groupId>concurrent</groupId>
+            <artifactId>concurrent</artifactId>
+            <version>1.3.4</version>
+        </dependency>
+
         <dependency>
             <groupId>trove</groupId>
             <artifactId>trove</artifactId>